Sure-Grip Roller Skates Red Aerobic Expression. Vegan boots so stylish and comfortable - low top like back in the day when we all skated at the beach. Hours of fun outside - these cool new skates have Sure-Grip dual purpose Aerobic wheels - just soft enough for the pavement, yet hard enough for the floor at Church of 8 Wheels in San Francisco. Color is the name of the game here - and super skate fun - you can dance in these (assuming you can dance, of course). Expression boots are made in mens full sizes only - we translated the sizes to women's sizes below based on our own experiences.